Open Access

ARTICLE

A Study on the Stability of the Borehole in Shale, in Extended-reach Drilling

Baohua Yu¹, Chuanliang Yan¹, Deli Gao^1,2, Jinxiang Li³

1 Key Laboratory of Petroleum Engineering in the Ministry of Education, China University of Petroleum, Beijing 102249, China
2 Corresponding author: Deli GAO E-mail: gaodeli@cup.edu.cn; yubaohua73@126.com
3 CNOOC Uganda Limited Beijing, China